题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。Being first in your class isa goal that you can work toward, but you must set it for yourself from thefirst day of high school. Read beyond assigned reading.Following your course outline and doing all of your assigned reading areimportant. But to pull ahead to first rank, you also need to read books thatcan provide that extra information you need. Prepare an extra credit report based on whatyou learn. Don't just physically sit inthe chair. Be a part of group discussions, 14．在如图所示的电路中，电源电压为5V，电压表测L1两端的电压；当电压表的示数为3V时，灯L2两端的电压是2V．